On December 20, 2019, Tang, Yanfeng; Wang, Chun; Ding, Xinyu; Ge, Ming; Hu, Yulin; Ni, Renjie; Liu, Weiqun; Zhang, Mengke; Shen, Lujie; Xu, Runsheng published a patent.Recommanded Product: 452-75-5 The title of the patent was Preparation of 4-chloro-7-methyl-1H-indazole. And the patent contained the following:
The invention discloses a preparation method of 4-chloro-7-methyl-1H-indazole, which has the advantages of simple operation and high reaction efficiency. The invention compound was prepared via formylation reaction of 4-chloro-2-fluorotoluene with N, N-dimethylformamide in the presence of diisopropylaminolithium and heterocyclization reaction of the product with hydrazine hydrate. The experimental process involved the reaction of 4-Chloro-2-fluorotoluene(cas: 452-75-5).Recommanded Product: 452-75-5
The Article related to preparation chloro methyl indazole formylation heterocycle, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Recommanded Product: 452-75-5
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics